HDTD headquarters in Qinhuangdao city, China, a beautiful costal city and located in the developed economical zone Jing-jin Bohai Bay. Through nearly ten years' development, HDTD Low Pressure Casting Machine, Gravity Casting Machine, Mold and automobile testing equipments have formed the international leading technology advantage and brand position.

Depending on the abundant technical forces and employing many senior technicians who engaged in the aluminum casting equipment and technology research for many years, HDTD has the comprehensive ability to research, manufacture and technology output of full set of equipments, process and mold to the auto aluminum casting parts, and to provide equipment modification and engineering services.

Most of engineering technicians from Europe and Asia have more than twenty years experience in engaging into the development, research and manufacture of the auto aluminum parts casting equipment; and has contacted and further studied various casting machines all over the world and made many optimizing and improving studies on them. During this process, they have accumulated a wealth of experience and based on which, they have successfully developed the most advanced casting equipments in the industry, and they has become the navigator of this field depending on their unceasing innovation and improvement.

Specific to different al-alloy casting parts, HDTD has developed HDTD-1300 \ 1000 \ 800 \ 600 \ 500 \ 300 – A \ B \ C \ D \ E \ K and other type Low Pressure Casting machines and all the indexes has reached or exceeded the world level. They are the ideal casting equipments for the aluminum casting manufacturing enterprises with the advantages of reliable performance, high-precision and reasonable price.

The latest-generation Low Pressure Casting Machine initiatively developed successfully the full digital servo hydraulic system of energy-saving, high performance immersing heating holding furnace of non-stick aluminum, dual & tri-chamber holding furnace, high-efficiency and high-precision water mist mold cooling system and other most advanced technologies, all of which have contributed to the above 50% lower energy consumption, above 15% higher production efficiency, much purifier al-liquid and much lower oxidation burning happens. All the mentioned advantages are in favor of the casting factories to reduce the casting cost, to increase casting parts quality and to create more economic benefits; meanwhile, to further make HDTD Low Pressure Casting Machine established the leading position among the industry.

HDTD sincerely hopes that we can build friendly and long-term cooperation with people from all walks of life among the foundry industry and bring you, the al-alloy casting enterprises, good economic benefits depending on the qualified products, the leading technology and better services.

July, 2012: establishes Qinhuangdao Hong Tong Machinery Co., Ltd, which expands the business scope and successfully developed the G-4th Low Pressure Casting Machine of energy-saving type driven by the full digital servo-hydraulic system;

May, 2013: establishes European company in Italy and sets up sales & service department in Turkey; meanwhile, has developed the latest generation Low Pressure Casting Machine with the new technologies of multi-chamber holding furnace, al-liquid super purification, fully digital servo hydraulic system, multi-media and high-efficiency mold cooling and fully integrated casting technology based on network;